Automobile service indicator



Dec. 4,- 192s. "u 1,693,828

J. P. STEVENS 'ET AL AUTOMOBILE SERVICE INDI CATR Filed June 18, 1927 J5CHANGED amsn? warmen om. am. /zrrm f' f d 57 56 ,y I//VE//TOR Jo/f/vPfncy STEVE/us. BCi/EORGE fl. C. BA1/LEY.

Patented Dec. 4, 1928.

, UNITED STATI-:s

PATENT OFFICE;

JOHN rERcY STEVENS', or LONG :BEAcmANn enonen A. o. BAILEY, or LosMientras, CALIFORNIA; SAID BAILEY Assrenon rro Lo'cisn rnnnivrniw, orLos Attentats,

CALIFORNIA.

AUTOMOBILE vSERVICE INDICATOR.

Application filed June 18, 1972*?.y Serial No. 199,647.

For the proper operation and maintenance 'l of an automobile,"truck, orthe like, it is necessary that it be serviced at regular intervals. Thatis, that the oil in the crank case be changed, that the cai" be greased,and that Vwat-erbe placed inthe battery. At present it is very difficultto accurately determine when the automobile has gonev a suili-A cientnumber of miles to warrant the above named servicing.

An object of our invention is to` provide an indicator whereby it ispossible` to accu" rately determine the exact numberof miles traveledsince the automobile was last serviced. e Y v A further object is toprovide an indicator on which isrecorded data relative to changing theoil, greasing the car, and placing water in the battery.`

Still another object is to provide independent means whereby the'vehicle operator .can determine when'the vehicle was last serviced foreither oil, battery.,

A feature of our invention resides yin the rapid means whereby themileage can be recorded at which the car was lastv greased, or the oil'changed therein, or the date upon which water was placed in the battery.

An advantage of ourindicator is Vthat it is visible to the operator atall times and can be easily adjusted by him when the car is service fOther objects, advantages, and features of invention may appear from theaccompanying drawing, the subj tion, and the appended In the drawing: .ni Y. y

Ffg. 1 is a front elevation of our indicator.

Fig. 2 is a view Similar to Fig. l but with the face plate removed.V

Fig. 3 is Va sectional view taken on line e, s, of Fig. 2.

Fig. 4 is a sectional view taken on line 4, 4 of Fig. 2. p 1

Fig. 5`is a sectional view taken on line 5, 5 of Fig. 2.

Fig. 6 is a fragmentary transverse sectional view of the date drums.

Referring more particularlyto the drawtur indicator comprises a. case 1in which we provide an indicator mechanism for the oil, 2, an indicatormechanism for the grease,

3, and al mechanism 4 indicating' when the claims.y

grease, or water in theV oined detailed descrip.

battery last received water. The mechanism 2 comprises a plurality ofnumbered discs 5 which are rotatably mounted on a shaft 6 andV are`successively operated by transfer drive wheel 9 mounted on a shaft 10.`A

gear 11 secured to the shaft 10 meshes with a drive gear 12 secured to ashaft 13 whichextends out ofthe case 1 and is provided with i a knul-ledbuttonlon the outer end thereof, whereby said shaft may be rotated aswill be further described. l y

A balance wheelkl on the shaft '13 assists in .continuingthe rotation ofsaid shaft in` order that the drive disc 9 and disc 8'may be rapidlyrotated to actuate the. discs 5 tofin` dicate the proper mileage. `Inorder that the friction discs 8, 9 shally be held constantly in contact,the shaft 6 extends through aslot 16 in the end bearing 17 and anarm 18is pivoted on the bearing and bears against the top of the shaft 6. Aspring 19 secured to the arm 18 urges t-he same downwardly against theshaft, thus pressing the disc 8 against the drive disc 9 and insuringrotation of the shaft 6. l' ii The construction and arrangement ofthemechanism to indicate when the car was greased Ais identical to thatpreviously described and will not be again describedin detail. v i It isnecessary that the oil in a crank case be changed after a definitenumber of miles have been traveled by they vehicle and withl ourindicator, when the oil is changed we set the mileageA shown on-thespeedometer upon the discs 5 ofthe indicator. Vhen this. is done it is aSimple matter to subtract the mileage shown on the indicator from themileage shown on the speedometer and 'thus accurately determine thenumber of miles traveled since the oil was last changed. A similarmethod is employed for indicating when the car was last greased althoughthe mileage traversed by the vehicle will be somewhat different for thecrank case oil change than

